Castream logo

Live streaming for educators and trainers

Teach once.Reach every learner.

Stream classes, webinars, and workshops to YouTube, Facebook, and private RTMP destinations at the same time, from OBS or your phone.

Start your live class setupSee how it works

For lectures, workshops, office hours, and training days.

One lesson. Every learner.
An instructor sketching a diagram on a whiteboard

Your class.
Wherever students are.

YouTube
Facebook
Custom RTMP
One feed through Castream. Public and private places to learn.

From your classroom to every screen

One lesson. One feed.
Public and private at once.

Keep your slides, cameras, and teaching setup. Castream sends your class to the places your learners already use.

  1. 01 / Your setup

    Send your class

    Stream slides and camera from OBS, a compatible RTMP encoder, or the Castream app.

    OBS · Slides · Webcam · Phone

  2. 02 / One workflow

    Choose public and private

    Send the same class to public platforms and to a private RTMP destination, like your course platform’s player.

    One incoming feed → multiple destinations

  3. 03 / Their screens

    Reach every learner

    Students join on YouTube, Facebook, or your course platform.

    In class · At home · Watching later

Start with what you have

A studio setup.
Or a laptop and a phone.

Teaching from OBS? Keep your scenes.

Send your OBS scenes with slides, screen share, and camera to Castream. Nothing about your lesson setup changes.

You’ll need: OBS or another RTMP-capable app, and access to your platform accounts.

Quick session? Use your phone.

Go live from iPhone or Android for office hours, a workshop demo, or a field lesson.

You’ll need: the Castream app, a stable connection, and clear audio.

Built for teaching

Focus on teaching.
Not on stream keys.

Public and private together

Send one class to YouTube or Facebook and to a private RTMP destination your course platform provides.

Questions in one place

See questions from YouTube, Twitch, and Facebook in one unified chat, or hand chat to an assistant on another device.

Lessons available later

Download your recording within 30 days to share with students who missed it.

Castream dashboard showing the RTMP setup, destination switches, and live preview
01. Connect your sourceUse your RTMP URL and key.02. Choose destinationsControl where your feed goes.03. Check your previewReview the incoming stream.

Creator plan

Everything a regular class needs.

Creator gives you multistreaming, unlimited stream time, and no watermark.

  • 3 simultaneous destinations.
  • 720p at up to 2.5 Mbps.
  • Unlimited streaming time.
  • No Castream watermark.

Need 1080p or five destinations? Pro adds both.

Get started

Set up your next class.

Connect your platforms, send one feed, and teach every audience at once.

See the Creator plan

Before your first class

Quick answers.

Can I stream to public and private destinations at the same time?

Yes. Add public platforms like YouTube next to a private RTMP destination from your course or webinar platform. Viewing access and privacy are controlled by each receiving service.

Can I use OBS for slides and screen sharing?

Yes. Build your scenes in OBS and send the feed to Castream with its RTMP server URL and stream key.

Can a teaching assistant handle questions?

Yes. With Chat Operator mode, an assistant runs unified chat from another device while you teach.

Can students watch later?

Castream keeps recordings for 30 days so you can download and share them.

Is this only for schools?

No. Trainers, coaches, course creators, and companies running internal training use the same workflow.

Your next class

Every learner,
in the room or not.

From lectures to workshops, bring every learner into the lesson with Castream.

Start your live class setup